/Engine/Source/Runtime/Core/Public/Misc/ConfigCacheIni.h
NOTE: The function naming is weird because you can't apparently have an overridden function differnt only by template type params
virtual void Parse1ToNSectionOfStrings ( const TCHAR * Section, const TCHAR * KeyOne, const TCHAR * KeyN, [TMap](API\Runtime\Core\Containers\TMap)< [FString](API\Runtime\Core\Containers\FString), [TArray](API\Runtime\Core\Containers\TArray)< [FString](API\Runtime\Core\Containers\FString) > > & OutMap, const [FString](API\Runtime\Core\Containers\FString) & Filename )